Issue description:Software is started and interface is recognised. (PC in display)The groups scenes and effects are working as expected.

Randomly after some time something disconnects PC and daslight. So instead of PC 01 is shown again.This causes all lights to get turned off. An unwanted blackout.We need to open Hilfsmittel - DMX hardware - select interface (still listed!) - Device Type - USB - okNow the daslight changes from 01 to PC and lights are turned on again.If you know how to do this, the blackout takes about 30 seconds. If no one is close to the PC the cocktail bar is dark for minutes....

What we did already:- a dmx splitter is in place (no additional component between daslight and dmx splitter in chain). The splitter is supposed to decouple its DMX IN (the daslight) from the 8 DMX OUTS - placed terminators on end of each dmx chain- checked all cables for damage and if they might be audio cables- installed a new Windows PC with win10 Pro and installed DVC3 completely again- replaced USB cable between PC and daslight with new one- used different USB ports- disabled USB selective suspend- disabled any energy savings

Still the blackouts occur randomly. Sometimes not at all for 12 hours. Sometimes 2 or 3 times in one hour. Sometimes while someone changed the lights, most of the time nobody is close to the PC at all.No pattern found so far.

We are unable to find events in Windows. There is also no crash report.

Have you seen this behaviour before ?We are not sure if the daslight is broken (it's quite new) or if the dvc/era file could cause this. Everything else should have been checked and/or replaced already.

I have the same problem too. To avoid the blackout I have memorized one scene in the dvc4, so when it goes into standalone it executes the scene 01. Like you I'm trying to understand if the problem it's the device...

First of, we're very sorry to read about these issues you're having using your DVC interfaces.This very much sounds like a defective USB connector problem. Please, contact our support team as soon as possible by creating a ticket on this page :

some PC guy recommended to try to use either - an external power supply or - an USB Hub with dedicated power supply or - an Y-Cable which is usually used if one USB port doesn't provided sufficient V/mA

I have not been able to replicate any disconnection when using the DVC4 Gold with Daslight4. I have had it on test for a few days and running fine with no disconnection issues.

I would advise checking the software and firmware is updated to the current versions.

We have not tested the Y-cable configuration to power the device. It is possible this could help if your computer does not provide the right current and voltage.

We have a Y-cable configuration with a plug adapter for using an android tablet with out Light Rider LR512 interface which works well. I will look at this option as a test for the DVC4 Gold too. There is not a user friendly way to mount an external power supply to power the board, other than in configuration with the Y-cable to connect to the Mini-USB port and enable power and data through it. I would not recommend a USB hub as these can often cause problems when updating firmware etc.

I am currently helping the existing users experiencing this problem through our support ticket system. I would advise any others to follow this procedure too to provide an easier platform to diagnose a problem and then i can update here.

As an update to anyone else researching this topic, we have found a possible cause in older firmware. If you have this problem, you will need to update to firmware 1.12. Currently this is not included in Hardware Manager within software downloads, and will need to contact technical support through our support ticket system to obtain a download link and instructions. Future updates should include this firmware for the DVC4 Gold.You can check by opening Hardware Manager and viewing the list of firmwares compiled, or by simply connecting your DVC4 Gold interface and viewing the update options. If your firmware date is higher than 1.12 then that should be fine too.This information is correct as of this date of posting.